harfbuzz/test/fuzzing
Garret Rieger e4fff64ce3 [repacker] check duplicate() for success.
Fixes fuzzer testcase https://oss-fuzz.com/testcase-detail/5475787333828608.
2023-01-23 18:37:13 -07:00
..
fonts
graphs [repacker] check duplicate() for success. 2023-01-23 18:37:13 -07:00
sets
Makefile.am
README.md
hb-draw-fuzzer.cc
hb-fuzzer.hh
hb-repacker-fuzzer.cc
hb-set-fuzzer.cc
hb-shape-fuzzer.cc
hb-subset-fuzzer.cc
main.cc
meson.build
run-draw-fuzzer-tests.py
run-repacker-fuzzer-tests.py
run-shape-fuzzer-tests.py
run-subset-fuzzer-tests.py

README.md

To build the fuzzers with libFuzzer to perform actual fuzzing, build with:

CXX=clang++ CXXFLAGS="-fsanitize=address,fuzzer-no-link" meson fuzzbuild --default-library=static -Dfuzzer_ldflags="-fsanitize=address,fuzzer"

ninja -Cfuzzbuild

Then, run the fuzzer like this:

fuzzbuild/test/fuzzing/hb-{shape,draw,subset,set}-fuzzer [-max_len=2048] [CORPUS_DIR]

Where max_len specifies the maximal length of font files to handle. The smaller the faster.

For more details consult the following locations: